Download all manuals RedHat 7 (CentOS/Fedora) with one command in Linux

wget -q -O- https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/ | grep Linux/7/pdf | cut -d \" -f 2 | awk '{print "https://access.redhat.com"$1}' | xargs wget

3
2015-05-06 15:58:43

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Hmm... grep, cut, awk and xargs? I'm sure we can do better. First, let grep do the hard work: ... | grep -o '[^"]*Linux/7/pdf[^"]*' | ... Look for quote delimited string that includes Linux/7/pdf and only print the matching string (-o) Now we don't need cut. As a personal preference, I'd have chosen sed rather than awk for the replacement. But then I realised we didn't need that either. Change xargs to specify the argument ... | xargs -I{} wget https://access.redhat.com{} Finally, replace wget with curl to save a few characters :-) curl -s https://... That leaves: curl -s https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/ | grep -o '[^"]*Linux/7/pdf[^"]*' | xargs -I{} wget https://access.redhat.com{}
flatcap · 159 weeks and 2 days ago

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